Finding the Fourth Proportional to 2,169, 2,983.50 and 1,906.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,169 : 2,983.50 = 1,906.56 : x
2. Step 2: Convert to fraction form
   2,169/2,983.50 = 1,906.56/x
3. Step 3: Cross multiply
   2,169x = 2,983.50 × 1,906.56
4. Step 4: Simplify right side
   2,169x = 5,688,221.76
5. Step 5: Solve for x
   x = 5,688,221.76/2,169
6. Step 6: Final answer
   x = 2,622.51